it has been explained that inui-kotenshu (inui small castle tower ) was built between 1591 and 1592 . 乾小天守は1591年 - 1592年建造という説がある。
aizu wakamatsu-jo castle has of two koguchi , masugata style inside umadashi style , for the north demaru (a small castle or tower built onto and projecting from a larger castle ) and the west demaru . 会津若松城は、馬出し形状の北出丸、西出丸を外側に備え、その内側は桝形を備える二重構造となっていた。
it was originally a kakiage type castle (a simple and small castle on a stamped mound of soil and rocks ) called yokoyama-jo castle built by yorikatsu shiomi who is said to have been a descendant of nagakiyo ogasawara of the late muromachi period . もとは小笠原長清の末裔とされる塩見頼勝が、室町時代後期に同地に築城した横山城という掻上城であった。
